| APA | CTYI. (2012, February 15). In Acronym Geek. Retrieved 23:39, February 15, 2012, from http://www.acronymgeek.com/CTYI |
| MLA | "CTYI." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/CTYI>. |
| MHRA | 'CTYI', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/CTYI> [accessed 15 February 2012] |
| Chicago | "CTYI", http://www.acronymgeek.com/CTYI (accessed February 15, 2012). |
| CBE/CSE | CTYI [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/CTYI. |
| Bluebook | CTYI, http://www.acronymgeek.com/CTYI (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CTYI, http://www.acronymgeek.com/CTYI (optional description here) (as of Feb. 15, 2012, 23:39). |
| AMA | CTYI. Acronym Geek. February 15, 2012, 23:39. Available at: http://www.acronymgeek.com/CTYI. Accessed February 15, 2012, 23:39. |